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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef _VIRTUAL_ARCHIVE_H
#define _VIRTUAL_ARCHIVE_H
#include "ArchiveFactory.h"
#include "IArchive.h"
#include <vector>
#include <string>
class CVirtualArchive;
/**
* Creates virtual non-existing archives which can be created during runtime
*/
class CVirtualArchiveFactory : public IArchiveFactory {
public:
CVirtualArchiveFactory();
virtual ~CVirtualArchiveFactory();
/**
* Registers and creates a new virtual archive to the factory
* @param filePath Path with which the archive can be found and opened
*/
CVirtualArchive* AddArchive(const std::string& fileName);
private:
IArchive* DoCreateArchive(const std::string& fileName) const;
std::vector<CVirtualArchive*> archives;
};
extern CVirtualArchiveFactory* virtualArchiveFactory;
/**
* A file in a virtual archive
*/
class CVirtualFile
{
public:
CVirtualFile(int fid, const std::string& name);
virtual ~CVirtualFile();
std::vector<std::uint8_t> buffer;
const std::string& GetName() const
{ return name; }
int GetFID() const
{ return fid; }
private:
const std::string name;
int fid;
};
/**
* An opened virtual archive, as archives get deleted after being
* opened with IArchiveFactory::DoCreateArchive all the data in a virtual archive is lost.
* Therefore an 'opened' class is created and the actual archive is preserved
*/
class CVirtualArchiveOpen : public IArchive
{
public:
CVirtualArchiveOpen(CVirtualArchive* archive, const std::string& fileName);
virtual ~CVirtualArchiveOpen();
virtual bool IsOpen();
virtual unsigned int NumFiles() const;
virtual bool GetFile( unsigned int fid, std::vector<std::uint8_t>& buffer );
virtual void FileInfo( unsigned int fid, std::string& name, int& size ) const;
private:
CVirtualArchive* archive;
};
/**
* A virtual archive
*/
class CVirtualArchive
{
public:
CVirtualArchive(const std::string& fileName);
virtual ~CVirtualArchive();
CVirtualArchiveOpen* Open();
CVirtualFile* AddFile(const std::string& file);
unsigned int NumFiles() const;
bool GetFile( unsigned int fid, std::vector<std::uint8_t>& buffer );
void FileInfo( unsigned int fid, std::string& name, int& size ) const;
const std::string& GetFileName() const
{ return fileName; }
const std::map<std::string, unsigned int>& GetNameIndex() const
{ return lcNameIndex; }
void WriteToFile();
private:
friend class CVirtualArchiveOpen;
std::vector<CVirtualFile*> files;
std::string fileName;
std::map<std::string, unsigned int> lcNameIndex;
};
#endif // _VIRTUAL_ARCHIVE_H
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